Analysis of Impedance Tuning Control and Synchronous Switching Technique for a Semibridgeless Active Rectifier in Inductive Power Transfer Systems for Electric Vehicles

Ann, Sangjoon; Lee, Byoung-Kuk

doi:10.1109/tpel.2021.3049546

Cited by 44 publications

(14 citation statements)

References 18 publications

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“…The analysis shows that changes in R L affect I p , and the relationship between I p and I 0 or U 0 is deduced through (3), (5), and ( 8), which suggests that U 0 can be regulated by adjusting I p even if R L is not known. It satisfies the assumption that the primary side controller can regulate the output voltage without a dual-side communication.…”

Section: Mutual Inductance Modelmentioning

confidence: 96%

See 1 more Smart Citation

Wireless Power Supply Voltage Regulation Control of Implantable Devices Based on Primary Side MPC

Song¹,

Yan²

2022

PIER C

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The wireless power transfer (WPT) system for implantable medical devices has the problem that the output voltage is difficult to adjust stably in real time without using additional composite compensation topology and dual-side communication. A primary side control method of WPT system based on a phase shifted full bridge inverter and continuous control set model predictive control (MPC) is proposed. First, series-series (SS) structure parameters and fundamental harmonic analysis (FHA) are used to derive the estimated value of the output voltage and establish the output voltage prediction model of the system. Then, to obtain the best response of the system, the optimization problem in the controller is transformed into the problem of solving the minimum value of the cost function, and the optimal control variable is obtained limited below the gradient descent method. Simulated and experimental results show that the control system works at a frequency of 200 kHz to realize realtime voltage adjustment, and the steady-state error is within 2%. Compared with the traditional method, the method reduces the adjustment time by 5-10 ms, and voltage overshoot is reduced by 5.3-6.7% when interference factors are dealt with such as load interference and mutual inductance. The proposed method improves the performance of SS compensated WPT systems to be more suitable for the applications that require compact and light weight receiver. It provides an effective method to realize the real-time regulation of the system output voltage.

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Section: Mutual Inductance Modelmentioning

confidence: 96%

“…To overcome the above shortcomings, new control strategies need to be proposed. Existing primary side control methods [5][6][7] usually rely on wireless communication modules. The voltage signal is passed from the secondary side to the primary side as a reference signal for the controller.…”

Section: Introductionmentioning

confidence: 99%

Wireless Power Supply Voltage Regulation Control of Implantable Devices Based on Primary Side MPC

Song¹,

Yan²

2022

PIER C

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“…A phase shift control method applied to the semi bridgeless active rectifier (SBAR) eliminates the need of communication of dual side [29]. An impedance tuning control for SBAR in inductive power transfer for electric vehicles is presented in [30]. However, impedance tuning algorithm is little complex.…”

Section: Introductionmentioning

confidence: 99%

Constant voltage control of a secondary side controlled wireless power transfer converter using LC/S compensation

Yenil¹,

Çetin²

2022

Pamukkale J Eng Sci

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In this study, constant voltage control of a secondary side controlled wireless power transfer (WPT) converter is evaluated based on efficiency. The LC/S compensation network which has perfect constant current characteristic is used in the design of the WPT converter. In order to improve the constant voltage performance of the LC/S compensation network, controlled rectifier is adapted to the converter. The phase shift modulation (PSM) control is applied to the switches of the rectifier as independent of the primary side. Thus, constant voltage regulation is achieved at constant operation frequency in a wide load range. The performance of the proposed converter is verified by a simulation work at 2.5 kW output power and 450 V output voltage. The efficiency values of the converter, as function of the load condition, is extracted by simulation and compared to frequency modulation control. In addition, power loss distribution and its comparison with frequency modulation is also discussed. The maximum efficiency of the converter is obtained 96.4% at full load condition. Bu çalışmada, sekonder taraf kontrollü bir kablosuz güç aktarım (WPT) dönüştürücüsünün sabit gerilim kontrolü, verime dayalı olarak değerlendirilmiştir. WPT dönüştürücünün tasarımında güçlü sabit akım karakteristiğine sahip LC/S kompanzasyon topolojisi kullanılmıştır. LC/S kompanzasyon topolojisinin sabit gerilim performansını iyileştirmek için, kontrollü doğrultucu dönüştürücüye uyarlanmıştır. PSM kontrolü doğrultucu anahtarlarına primer taraftan bağımsız olarak uygulanmıştır. Böylece, geniş bir yük aralığında sabit çalışma frekansında sabit gerilim regülasyonu elde edilir. Sunulan dönüştürücünün performansı, 2.5 kW çıkış gücü ve 450 V çıkış geriliminde simulasyon çalışmasıyla doğrulanmıştır. Yük durumunun fonksiyonu olarak dönüştürücünün verim değerleri simulasyon ile çıkarılmış ve frekans modülasyonu ile karşılaştırılmıştır. İlaveten, güç kaybı dağılımı ve frekans modülasyonu ile karşılaştırması incelenmiştir. Dönüştürücünün maksimum verimi, tam yük durumunda %96.4 olarak elde edilmiştir.

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“…The inductive coupler is adapted to generate the magnetic fields. IPT system has been widely used for underwater equipment [1]- [6], implantable medical devices [7]- [10], mobile devices [11]- [15], electrical vehicles (EVs) [16]- [20], or drone-in-flight [21]. IPT technologies could provide the benefits such as high efficiency, galvanic isolation, and high reliability especially in hostile environments [22].…”

Section: Introductionmentioning

confidence: 99%

Analysis and design of four-plate capacitive wireless power transfer system for undersea applications

Lei

Zhang

et al. 2021

Trans. Electr. Mach. Syst.

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This paper presents a four-plate undersea capacitive wireless power transfer (CPT) system for underwater applications such as autonomous underwater vehicles (AUVs). Generally, a CPT system transfers the power based on electric fields. The complex resonant compensation networks are used to make the CPT system work in the resonant condition. The resonant voltage is always very high. It will be a big challenge to the human safety. In this paper, a virtual electrons periodic reciprocating flow theory is proposed for the CPT system. In one switching cycle, the electrons firstly flow in the forward direction through the forward path and then flow in the inverse direction through the inverse path. The CPT system has been deeply studied with the vacuum dielectric or the air dielectric. However, for the CPT system, there are few papers to show the underwater application. In this paper, an undersea four-plate CPT system is designed and studied in the underwater condition. The two coupling capacitors and other elements of the CPT system could build a closed-loop path. A small value inductor is adapted as a resonant compensation network for the four-plate CPT system. The DC voltage is inverted to the AC voltage in the primary side with the single-phase full-bridge inverter. The resonant voltage is rectified to the DC voltage in the secondary side with the single-phase full-bridge diode rectifier. A 100 W power level CPT system is constructed to verify the theory analysis and the calculation. The theory analysis is verified by the simulated and experimental results. The stable output voltage and load power are achieved in this paper. Index Terms-Wireless power transfer system, capacitive, underwater applications, autonomous underwater vehicles (AUVs).

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Analysis of Impedance Tuning Control and Synchronous Switching Technique for a Semibridgeless Active Rectifier in Inductive Power Transfer Systems for Electric Vehicles

Cited by 44 publications

References 18 publications

Wireless Power Supply Voltage Regulation Control of Implantable Devices Based on Primary Side MPC

Wireless Power Supply Voltage Regulation Control of Implantable Devices Based on Primary Side MPC

Constant voltage control of a secondary side controlled wireless power transfer converter using LC/S compensation

Analysis and design of four-plate capacitive wireless power transfer system for undersea applications

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